Allow for free deployment to Repl.it (#114)

* Update README.md with instructions for deploying via Repl.it

* Create .replit

.replit

@@ -0,0 +1,2 @@
+language = "python3"
+run = "pip install -r requirements.txt && ./run"

README.md

@@ -56,10 +56,19 @@ There are a few different ways to begin using the app, depending on your prefere
 
 Provides:
 - Free deployment of app
-- Free https url (https://\<your app name\>.herokuapp.com)
+- Free HTTPS url (https://\<your app name\>.herokuapp.com)
 - Downtime after periods of inactivity \([solution](https://github.com/benbusby/whoogle-search#prevent-downtime-heroku-only)\)
 
-### B) [pipx](https://github.com/pipxproject/pipx#install-pipx)
+### B) [Repl.it](https://repl.it)
+[![Run on Repl.it](https://repl.it/badge/github/benbusby/whoogle-search)](https://repl.it/github/benbusby/whoogle-search)
+
+Provides:
+- Free deployment of app (can be ran without account)
+- Free HTTPS url (https://\<app name\>.\<username\>\.repl\.co)
+    - Supports custom domains
+- Downtime after periods of inactivity \([solution 1](https://repl.it/talk/ask/use-this-pingmat1replco-just-enter/28821/101298), [solution 2](https://repl.it/talk/learn/How-to-use-and-setup-UptimeRobot/9003)\)
+
+### C) [pipx](https://github.com/pipxproject/pipx#install-pipx)
 Persistent install:
 
 `pipx install git+https://github.com/benbusby/whoogle-search.git`
@@ -68,7 +77,7 @@ Sandboxed temporary instance:
 
 `pipx run git+https://github.com/benbusby/whoogle-search.git whoogle-search`
 
-### C) pip
+### D) pip
 `pip install whoogle-search`
 
 ```bash
@@ -86,7 +95,7 @@ optional arguments:
   --https-only          Enforces HTTPS redirects for all requests (default False)
 ```
 
-### D) Manual
+### E) Manual
 Clone the repo and run the following commands to start the app in a local-only environment:
 
 ```bash
@@ -125,7 +134,7 @@ sudo systemctl enable whoogle
 sudo systemctl start whoogle
 ```
 
-### E) Manual (Docker)
+### F) Manual (Docker)
 1. Ensure the Docker daemon is running, and is accessible by your user account
   - To add user permissions, you can execute `sudo usermod -aG docker yourusername`
   - Running `docker ps` should return something besides an error. If you encounter an error saying the daemon isn't running, try `sudo systemctl start docker` (Linux) or ensure the docker tool is running (Windows/macOS).